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The Commemorative
Quarter for
The Commemorative Quarter for Montana

Time Zone: Sheridan County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Plentywood is the Seat for Sheridan County.

Sheridan County was founded in 1913 and was created by taking area from ValleyCounty.

From the Census Estimates for 2009, <1> Sheridan had a population of 3,243 people. This is a decrease of 21% since the last Census (which gave a population of 4,105 people in 2000).

At the time of the 2000 Census, Sheridan represented 0.46% of the total population of Montana, making it the state's 38th most populous county (out of 56 counties).

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

Since 2000
Year-to-Year Change
20103,384-17.56%+4.35% since 2009
20093,243-21%-0.18% since 2008
20083,249-20.85%-2.61% since 2007
20004,105The Last Census

More information can be found on the Sheridan County Census Page for Sheridan County.


Below are some of the communities located in Sheridan County (for more communities, please visit our Nearby Page for Sheridan County):

Community 2009
(2009vs. 2000)
Plentywood   1,6382,06120.52% decrease  
Medicine Lake   21026921.93% decrease  
Westby   13717220.35% decrease  
Outlook   658220.73% decrease  

Websites for Sheridan County

Official Website:   www.co.sheridan.mt.us/

If you know of a history or genealogy society whose interest includes Sheridan County, would you please send us the URL for their website? We would like to add their link to our Gazetteer. To contact us, please visit our Feedback Page.

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Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

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<2>All Quarter-dollar coin images from the United States Mint.

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